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Publicação
Physiological responses of Lupinus luteus to different copper concentrations
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Orientador(es)
Resumo(s)
Yellow lupin (Lupinus luteus L.) plants were grown in hydroponic solution for 15 d under different copper
concentrations (0.1, 0.5, 1.0, 10, 25 and 50 μM). With increasing Cu concentration total biomass was not affected, leaf
area slightly decreased, while chlorophyll content decreased considerably. Cu content increased significantly both in
roots and in leaves, but the contents of other ions were only slightly affected at the highest Cu concentration (Mn
content decreased both in roots and in leaves, P content decreased only in leaves and Zn content increased in roots).
Superoxide dismutase (SOD) activity increased up to day 7 after copper application. Peroxidase (GPOD) and
polyphenol oxidase (PPO) activities also increased, while catalase (CAT) activity remained constant
Descrição
Palavras-chave
yellow lupin oxidative stress heavy metal toxicity
Contexto Educativo
Citação
"Biologia Plantarum". ISSN 0006-3134. 53(1) (2009) 105-111